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Mathematics 8 Online
OpenStudy (anonymous):

When the outliers are removed, how does the mean change?

OpenStudy (anonymous):

The mean decreases by 2.75. The mean increases by 2.75. The mean increases by 3.25. There are no outliers.

undeadknight26 (undeadknight26):

the out lier here is 18 right?

undeadknight26 (undeadknight26):

so lets take that out.

undeadknight26 (undeadknight26):

now we have 38 + 38 + 40 + 44 + 44 + 44 + 46 + 48

undeadknight26 (undeadknight26):

that equals 342...now divide it by how many numbers there were...

undeadknight26 (undeadknight26):

your new men is 342/8 = 42.75.

undeadknight26 (undeadknight26):

now just add 18 to the 342 and add 1 do that 8 to make it: 360/9 = 40.

undeadknight26 (undeadknight26):

this now means that mean increases by 2.75

undeadknight26 (undeadknight26):

Hope i helped!

OpenStudy (anonymous):

haha you did more than help man thank you

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